*'''Tejas Gas Corporation''', once part of the Tejas Arcadian Holding Company, is parent to Tejas Gas Corporation, Acadian Gas Corporation, and Transok, Inc. Tejas Gas Corporation was acquired by Shell Oil Company in January 1998.[http://www.magnumhunter.com/aboutmhr/officers.htm]
*[http://www.ftc.gov/os/1998/9810/9810166cmp.htm [[Shell Oil Company ]] and Tejas Energy]: Federal Trade Commission Complaint re "to lessen competion .. to create a monopoly."